/* ==========================================================================
   BY ADITYA — Design Tokens & Base Styles
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800;900&family=Plus+Jakarta+Sans:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500;700&family=Syne:wght@600;700;800&display=swap');

:root {
  /* Color Palette */
  --bg-dark: #060608;
  --bg-surface: #0b0c10;
  --bg-card: rgba(16, 18, 27, 0.7);
  --bg-card-hover: rgba(24, 28, 42, 0.85);
  --bg-glass: rgba(255, 255, 255, 0.03);

  /* Accents */
  --cyan: #00f2fe;
  --cyan-glow: rgba(0, 242, 254, 0.35);
  --violet: #7928ca;
  --violet-glow: rgba(121, 40, 202, 0.35);
  --magenta: #ff007f;
  --gold: #ffb703;
  --emerald: #10b981;

  /* Gradients */
  --grad-primary: linear-gradient(135deg, #00f2fe 0%, #4facfe 50%, #7928ca 100%);
  --grad-accent: linear-gradient(135deg, #ff007f 0%, #7928ca 50%, #00f2fe 100%);
  --grad-card-border: linear-gradient(135deg, rgba(255, 255, 255, 0.18), rgba(255, 255, 255, 0.02) 60%, rgba(0, 242, 254, 0.25) 100%);
  --grad-text: linear-gradient(180deg, #ffffff 20%, #a1a1b5 100%);

  /* Typography */
  --font-display: 'Syne', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Plus Jakarta Sans', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Text Colors */
  --text-primary: #ffffff;
  --text-secondary: #9ea3b5;
  --text-muted: #5e6478;

  /* Borders & Shadows */
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-active: rgba(0, 242, 254, 0.5);
  --shadow-glow-cyan: 0 0 35px rgba(0, 242, 254, 0.25);
  --shadow-glow-violet: 0 0 35px rgba(121, 40, 202, 0.25);
  --shadow-glass: 0 20px 50px rgba(0, 0, 0, 0.6);

  /* Spacing */
  --nav-height: 80px;
  --container-max: 1280px;
  --transition-smooth: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-bounce: all 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* Reset & Box Sizing */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  color-scheme: dark;
  font-size: 16px;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background-color: var(--bg-dark);
  color: var(--text-primary);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
  cursor: default;
}

/* Background Atmosphere */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: 
    radial-gradient(circle at 15% 20%, rgba(121, 40, 202, 0.12) 0%, transparent 40%),
    radial-gradient(circle at 85% 60%, rgba(0, 242, 254, 0.1) 0%, transparent 45%),
    radial-gradient(circle at 50% 90%, rgba(255, 0, 127, 0.08) 0%, transparent 40%);
  pointer-events: none;
  z-index: -2;
}

/* Subtle Grid Texture */
body::after {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-image: 
    linear-gradient(rgba(255, 255, 255, 0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.015) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  z-index: -1;
}

/* Typography Presets */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--text-primary);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.font-display {
  font-family: var(--font-display);
}

.font-mono {
  font-family: var(--font-mono);
}

.text-gradient {
  background: var(--grad-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.text-gradient-alt {
  background: var(--grad-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition-smooth);
}

img, video {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Layout Utilities */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 2rem;
}

.section {
  padding: 8rem 0;
  position: relative;
  z-index: 1;
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 4rem auto;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem;
  border-radius: 9999px;
  background: rgba(0, 242, 254, 0.08);
  border: 1px solid rgba(0, 242, 254, 0.25);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 1.25rem;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 4.5vw, 3.6rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 1.25rem;
  letter-spacing: -0.03em;
}

.section-subtitle {
  font-size: clamp(1.05rem, 1.8vw, 1.25rem);
  color: var(--text-secondary);
  font-weight: 400;
  line-height: 1.6;
}

/* Canvas Background Overlay */
#interactive-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
}

/* Selection */
::selection {
  background: var(--cyan);
  color: #000;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: #09090d;
}
::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.15);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--cyan);
}